Merge branch 'v2-prototype' into refactor/order-utils/for-v2

* v2-prototype:
  Set contract expiration time to a constant 10 minutes
  Remove unused promises array
  Make erc20_wrapper and erc721_wrapper serial
  Rename changelogs to changelog
  Add CHANGELOG entry
  Check that git branch is up to date before publishing
  Move prepublish checks before building packages for publishing
  Refactor changelog utils to a separate module

1 files changed, 55 insertions, 0 deletions

diff --git a/packages/monorepo-scripts/src/utils/changelog_utils.ts b/packages/monorepo-scripts/src/utils/changelog_utils.ts
new file mode 100644
index 000000000..edfe65a80
--- /dev/null
+++ b/packages/monorepo-scripts/src/utils/changelog_utils.ts
@@ -0,0 +1,55 @@
+import * as _ from 'lodash';
+import * as moment from 'moment';
+
+import { Change, Changelog, VersionChangelog } from '../types';
+
+const CHANGELOG_MD_HEADER = `
+<!--
+This file is auto-generated using the monorepo-scripts package. Don't edit directly.
+Edit the package's CHANGELOG.json file only.
+-->
+
+CHANGELOG
+`;
+
+export const changelogUtils = {
+    getChangelogMdTitle(versionChangelog: VersionChangelog): string {
+        if (_.isUndefined(versionChangelog.timestamp)) {
+            throw new Error(
+                'All CHANGELOG.json entries must be updated to include a timestamp before generating their MD version',
+            );
+        }
+        const date = moment(`${versionChangelog.timestamp}`, 'X').format('MMMM D, YYYY');
+        const title = `\n## v${versionChangelog.version} - _${date}_\n\n`;
+        return title;
+    },
+    getChangelogMdChange(change: Change): string {
+        let line = `    * ${change.note}`;
+        if (!_.isUndefined(change.pr)) {
+            line += ` (#${change.pr})`;
+        }
+        return line;
+    },
+    generateChangelogMd(changelog: Changelog): string {
+        let changelogMd = CHANGELOG_MD_HEADER;
+        _.each(changelog, versionChangelog => {
+            const title = changelogUtils.getChangelogMdTitle(versionChangelog);
+            changelogMd += title;
+            const changelogVersionLines = _.map(
+                versionChangelog.changes,
+                changelogUtils.getChangelogMdChange.bind(changelogUtils),
+            );
+            changelogMd += `${_.join(changelogVersionLines, '\n')}`;
+        });
+
+        return changelogMd;
+    },
+    shouldAddNewChangelogEntry(currentVersion: string, changelog: Changelog): boolean {
+        if (_.isEmpty(changelog)) {
+            return true;
+        }
+        const lastEntry = changelog[0];
+        const isLastEntryCurrentVersion = lastEntry.version === currentVersion;
+        return isLastEntryCurrentVersion;
+    },
+};